The viscosity and zeta potential of bentonite dispersions in presence of anionic surfactants

The influence of surfactants on the flow behaviour of bentonite dispersions (2% w/w) is studied for two anionic surfactants, sodium dodecyl sulfate (SDS) and ammonium lauryl sulfate (ALS). In the range of 10 −4–10 −2 mol/l, the surfactants show different effects on the viscosity and zeta potential o...

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Bibliographic Details
Published in:Materials letters 2002-12, Vol.57 (2), p.420-424
Main Authors: Yalçın, T, Alemdar, A, Ece, Ö.I, Güngör, N
Format: Article
Language:English
Subjects:
Ammonium lauryl sulfate
Anionic surfactant
Bentonite–water systems
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Rheology
Sodium dodecyl sulfate
Viscosity
Zeta potential
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Summary:The influence of surfactants on the flow behaviour of bentonite dispersions (2% w/w) is studied for two anionic surfactants, sodium dodecyl sulfate (SDS) and ammonium lauryl sulfate (ALS). In the range of 10 −4–10 −2 mol/l, the surfactants show different effects on the viscosity and zeta potential of the bentonite suspension. The experimental results are discussed considering changes in the interlayer of the clay minerals.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(02)00803-0